Door lock



FIG. 1 is a perspective view of a door lock showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a side elevational view thereof.

CLAIM The ornamental design for a door lock, as shown and described.